Papermaking wastewater recycling device

Abstract

The utility model relates to a papermaking wastewater recycling device, which belongs to the technical field of wastewater recycling equipment and comprises an outer frame body, a feed port arranged on the side wall of the outer frame body and a filter screen plate arranged at the bottom of the outer frame body, and a rotating component is arranged in the outer frame body. According to the papermaking wastewater recycling device, a wastewater pipeline and a feeding pipe are connected, a driving motor is started, the driving motor rotates to drive a transmission rod to rotate, the transmission rod rotates to drive a filtering outer barrel to rotate, and the transmission rod rotates to drive a driving gear to rotate; a driving gear rotates to drive a transmission gear to rotate on the outer side of the driving gear, so that a filtering inner cylinder is driven to rotate, when a circulating hole of the filtering inner cylinder rotates to the bottommost part, wastewater is filtered by the circulating hole and enters a filtering outer cylinder, and meanwhile, a stirring transverse plate continuously stirs the internal wastewater in the rotating process.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater recycling equipment, in particular to a papermaking wastewater recycling and cyclic utilization device. Background Art

[0002] Papermaking wastewater recycling is a crucial area involving environmental protection and resource reuse. Papermaking wastewater is primarily divided into pulping wastewater, midstream water, and paper machine whitewater. Pulping wastewater can be recycled through alkali recovery processes; paper machine whitewater can be directly reused in production after treatment through flotation or multi-disc vacuum filtration. Midstream water, which contains lignin, hemicellulose, sugars, residual alkali, and inorganic salts, is a more difficult industrial wastewater to treat.

[0003] In the process of papermaking wastewater recycling and reuse, the wastewater is often wrapped with a large amount of residual paper scraps, wood chips and other impurities. In the process of recycling and reuse, the wastewater needs to be filtered multiple times to try to remove the impurities mixed therein. Traditional papermaking wastewater recycling and reuse usually adopts a static filtration method when filtering. This method has a relatively slow filtering effect, which makes the recycling and reuse efficiency low. Therefore, a papermaking wastewater recycling and reuse device is proposed. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the utility model provides a papermaking wastewater recovery and recycling device with the advantages of good flexibility and high efficiency, which solves the problem that the traditional papermaking wastewater recovery and recycling device uses a static filtration method with relatively slow effect and low efficiency.

[0005] In order to achieve the above-mentioned purpose of good flexibility and high efficiency, the utility model provides the following technical solution: a papermaking wastewater recycling and utilization device, comprising an outer frame, a feed port arranged on the side wall of the outer frame, and a filter screen plate arranged at the bottom of the outer frame, a rotating assembly is arranged inside the outer frame, and a cleaning assembly is arranged on the inner wall of the outer frame;

[0006] The rotating assembly includes a positioning cylinder arranged inside the feed port, a limiting plate rotatably connected to the inner side wall of the positioning cylinder, a feed pipe fixedly installed inside the limiting plate, a filter inner cylinder fixedly installed on the side of the feed pipe, a fixed sleeve fixedly installed on the side of the outer frame, a drive motor fixedly installed on the side of the fixed sleeve, a transmission rod fixedly installed on the side of the drive motor, a filter outer cylinder fixedly installed on the outside of the transmission rod, a limiting cylinder ring rotatably connected to the outside of the positioning cylinder, and a filter screen fixedly installed on the side of the limiting cylinder ring;

[0007] The cleaning assembly comprises a plurality of fixing rods fixedly mounted on the inner side wall of the outer frame and arc-shaped cover plates plugged and fixed on the tops of the fixing rods.

[0008] Furthermore, a discharge port is provided at the bottom of the outer frame, and a sliding slot passing through the side wall of the outer frame is provided on the inner side wall of the discharge port. The filter screen is laterally embedded in the sliding slot and fixed to the sliding slot by a buckle.

[0009] Furthermore, a feed slot is provided on the side of the outer frame, the positioning cylinder is an L-shaped structure that is laterally embedded in the interior of the feed slot and is fixed to the outer frame, the limiting plate is a Z-shaped cylindrical structure and one side is embedded in the interior of the positioning cylinder, and a transmission tooth pattern is provided on the top surface of one end of the limiting plate.

[0010] Furthermore, the limiting ring is an I-shaped ring structure, one side of the limiting ring is wrapped around the outside of the limiting plate and is rotatably connected to the top of the limiting plate, and the inner side wall of the limiting ring is provided with a tooth groove used to cooperate with the transmission tooth pattern of the limiting plate.

[0011] Furthermore, the side walls of the inner filter cylinder and the outer filter cylinder are provided with a plurality of transversely arranged flow holes for coordinated use, and the inner side walls of the inner filter cylinder and the outer filter cylinder are provided with a plurality of stirring transverse plates.

[0012] Furthermore, the side of the inner filter cylinder is rotatably connected to the inner side wall of the outer filter cylinder. The side of the inner filter cylinder is provided with a transmission gear fixedly mounted thereon. The transmission rod passes through the fixed sleeve transversely and is rotatably connected to the fixed sleeve.

[0013] Furthermore, the filter screen is a cylindrical structure, and one end of the fixing sleeve is embedded in the side wall of the filter screen and is rotatably connected to the filter screen.

[0014] Furthermore, the transmission rod passes through the filter outer cylinder transversely and is provided with a driving gear on the outer side of one end located inside the filter outer cylinder. The driving gear and the transmission gear are connected through tooth meshing transmission.

[0015] Furthermore, the surface of the filter screen is provided with a number of regular drainage holes, the arc-shaped cover plate is a hollow structure and a water supply pipe is connected to one side of the bottom, and the bottom of the arc-shaped cover plate is provided with a number of cleaning nozzles used in conjunction with the drainage holes.

[0016] Compared with the prior art, the present invention provides a papermaking wastewater recycling and utilization device, which has the following beneficial effects:

[0017] 1. The papermaking wastewater recycling and utilization device connects the wastewater pipe and the feed pipe, starts the drive motor, and the rotation of the drive motor drives the transmission rod to rotate, and the rotation of the transmission rod drives the filter outer cylinder to rotate, and the rotation of the transmission rod drives the drive gear to rotate. Since the transmission gear and the drive gear are engaged, the rotation of the drive gear will drive the transmission gear to rotate on the outside of the drive gear, thereby driving the filter inner cylinder to rotate. When the flow hole of the filter inner cylinder rotates to the bottom, the wastewater enters the interior of the filter outer cylinder through the filtration of the flow hole, and at the same time, the stirring horizontal plate continuously stirs the internal wastewater during the rotation process.

[0018] 2. The papermaking wastewater recycling and reuse device, the wastewater filtered through the flow holes enters the interior of the filter outer cylinder from the filter inner cylinder, when the flow holes of the filter outer cylinder rotate to the bottom, the wastewater enters the interior of the filter screen after being filtered through the flow holes, the drainage holes of the filter screen intercept all the impurities in the wastewater inside the filter screen, when the drainage holes of the filter screen reach the bottom of the arc cover plate, the cleaning nozzle under the arc cover plate sprays the impurities blocked on the surface of the drainage holes into the interior of the filter screen, avoiding the blockage of the drainage holes affecting the outflow of wastewater, the wastewater enters the discharge port after passing through the drainage holes, and the wastewater is filtered and precipitated by the filter plate again, completing the wastewater recycling cycle, thereby solving the problem that the traditional papermaking wastewater recycling and reuse device adopts the static filtration method with relatively slow effect and low efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a transverse cross-sectional view of the utility model;

[0020] Figure 2 For this utility model Figure 2 A magnified view of the structure in the middle;

[0021] Figure 3 This is a longitudinal section view of the utility model;

[0022] Figure 4 This is a cross-sectional view of the filter inner cylinder of the utility model;

[0023] Figure 5 This is a cross-sectional view of the filter screen of the present utility model.

[0024] In the figure: 1. outer frame; 101. discharge port; 102. sliding slot; 2. feed port; 3. filter screen; 4. rotating assembly; 401. positioning cylinder; 402. limiting plate; 403. feed pipe; 404. filter inner cylinder; 405. fixing sleeve; 406. driving motor; 407. transmission rod; 408. filter outer cylinder; 409. limiting cylinder ring; 410. filter screen; 411. circulation hole; 412. stirring horizontal plate; 413. transmission gear; 414. driving gear; 415. drainage hole; 5. cleaning assembly; 501. fixing rod; 502. arc cover plate. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figures 1 to 5 In this embodiment, a papermaking wastewater recycling and utilization device includes an outer frame 1, a feed port 2 provided on the side wall of the outer frame 1, a filter screen 3 provided at the bottom of the outer frame 1, a rotating component 4 provided inside the outer frame 1, and a cleaning component 5 provided on the inner side wall of the outer frame 1;

[0027] The rotating assembly 4 includes a positioning cylinder 401 arranged inside the feed port 2, a limiting plate 402 rotatably connected to the inner wall of the positioning cylinder 401, a feed pipe 403 fixedly installed inside the limiting plate 402, a filter inner cylinder 404 fixedly installed on the side of the feed pipe 403, a fixed sleeve 405 fixedly installed on the side of the outer frame 1, a drive motor 406 fixedly installed on the side of the fixed sleeve 405, a transmission rod 407 fixedly installed on the side of the drive motor 406, a filter outer cylinder 408 fixedly installed on the outside of the transmission rod 407, a limiting cylinder ring 409 rotatably connected to the outside of the positioning cylinder 401, and a filter screen 410 fixedly installed on the side of the limiting cylinder ring 409.

[0028] It should be noted that a rotating drum is provided on the side of the feed pipe 403 to connect with the wastewater pipe, so that when the feed pipe 403 rotates, it will not drive the wastewater pipe to rotate synchronously.

[0029] In this embodiment, a discharge port 101 is provided at the bottom of the outer frame 1, and a sliding slot 102 passing through the side wall of the outer frame 1 is provided on the inner wall of the discharge port 101. The filter screen plate 3 is laterally embedded in the sliding slot 102 and fixed to the sliding slot 102 by a snap fastener.

[0030] In this embodiment, a feed slot is provided on the side of the outer frame 1, the positioning cylinder 401 is an L-shaped structure that is laterally embedded in the interior of the feed slot and is fixedly installed with the outer frame 1, the limiting plate 402 is a Z-shaped cylindrical structure and one side is embedded in the interior of the positioning cylinder 401, and a transmission tooth pattern is provided on the top surface of one end of the limiting plate 402.

[0031] In this embodiment, the limiting ring 409 is an I-shaped ring structure. One side of the limiting ring 409 is wrapped around the outside of the limiting plate 402 and is rotatably connected to the top of the limiting plate 402. The inner wall of the limiting ring 409 is provided with a tooth groove used to cooperate with the transmission tooth pattern of the limiting plate 402.

[0032] In this embodiment, the side walls of the inner filter cylinder 404 and the outer filter cylinder 408 are provided with a plurality of transversely arranged flow holes 411 for use in conjunction with each other, and the inner side walls of the inner filter cylinder 404 and the outer filter cylinder 408 are provided with a plurality of stirring transverse plates 412 .

[0033] It should be noted that a filter mesh is provided inside the flow hole 411, which can filter impurities to a certain extent.

[0034] In this embodiment, the side of the filter inner cylinder 404 is rotatably connected to the inner wall of the filter outer cylinder 408. The side of the filter inner cylinder 404 is provided with a transmission gear 413 fixedly installed thereon. The transmission rod 407 passes through the fixed sleeve 405 horizontally and is rotatably connected to the fixed sleeve 405.

[0035] In this embodiment, the filter screen 410 is a cylindrical structure, and one end of the fixing sleeve 405 is embedded in the side wall of the filter screen 410 and is rotatably connected to the filter screen 410 .

[0036] In this embodiment, the transmission rod 407 passes through the filter outer cylinder 408 transversely and is provided with a driving gear 414 on the outer side of one end located inside the filter outer cylinder 408. The driving gear 414 and the transmission gear 413 are connected through tooth meshing transmission.

[0037] The cleaning assembly 5 includes a plurality of fixing rods 501 fixedly mounted on the inner side wall of the outer frame 1 and an arc-shaped cover plate 502 plugged and fixed on the top of the fixing rods 501 .

[0038] In this embodiment, a plurality of regularly arranged drainage holes 415 are provided on the surface of the filter screen 410, the arc-shaped cover plate 502 is a hollow structure and a water supply pipe is connected to one side of the bottom, and a plurality of cleaning nozzles are provided at the bottom of the arc-shaped cover plate 502 for use with the drainage holes 415.

[0039] The working principle of the above embodiment is:

[0040] By connecting the wastewater pipe and the feed pipe 403, the drive motor 406 is started. The rotation of the drive motor 406 drives the transmission rod 407 to rotate, and the rotation of the transmission rod 407 drives the filter outer cylinder 408 to rotate. The rotation of the transmission rod 407 drives the drive gear 414 to rotate. Since the transmission gear 413 and the drive gear 414 are engaged, the rotation of the drive gear 414 will drive the transmission gear 413 to rotate on the outside of the drive gear 414, thereby driving the filter inner cylinder 404 to rotate. When the flow hole 411 of the filter inner cylinder 404 rotates to the bottom, the wastewater enters the interior of the filter outer cylinder 408 through the filtration of the flow hole 411, and at the same time, the stirring horizontal plate 412 continuously stirs the internal wastewater during the rotation process.

[0041] In addition, the wastewater filtered through the circulation hole 411 enters the interior of the filter outer cylinder 408 from the filter inner cylinder 404. When the circulation hole 411 of the filter outer cylinder 408 rotates to the bottom, the wastewater enters the interior of the filter screen 410 after being filtered through the circulation hole 411. The drainage hole 415 of the filter screen 410 intercepts all impurities in the wastewater inside the filter screen 410. When the drainage hole 415 of the filter screen 410 reaches the bottom of the curved cover plate 502, the cleaning nozzle below the curved cover plate 502 will spray the impurities blocked on the surface of the drainage hole 415 into the interior of the filter screen 410, avoiding the blockage of the drainage hole 415 affecting the outflow of wastewater. After passing through the drainage hole 415, the wastewater enters the discharge port 101, and the wastewater is filtered and precipitated by the filter plate 3 again, completing the wastewater recovery cycle, thereby solving the problem that the traditional papermaking wastewater recovery and recycling device adopts the static filtration method with relatively slow effect and low efficiency.

[0042] The electrical components mentioned in this article are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device that controls a computer, etc., and the existing public power connection technology is not described in detail in this article.

[0043] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0044] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A papermaking wastewater recycling and utilization device, comprising an outer frame (1), a feed port (2) arranged on the side wall of the outer frame (1), and a filter screen (3) arranged at the bottom of the outer frame (1), characterized in that: A rotating assembly (4) is provided inside the outer frame (1), and a cleaning assembly (5) is provided on the inner side wall of the outer frame (1); The rotating assembly (4) comprises a positioning cylinder (401) arranged inside the feed port (2), a limiting plate (402) rotatably connected to the inner side wall of the positioning cylinder (401), a feed pipe (403) fixedly mounted inside the limiting plate (402), a filter inner cylinder (404) fixedly mounted on the side of the feed pipe (403), a fixed sleeve (405) fixedly mounted on the side of the outer frame (1), a drive motor (406) fixedly mounted on the side of the fixed sleeve (405), a transmission rod (407) fixedly mounted on the side of the drive motor (406), a filter outer cylinder (408) fixedly mounted on the outside of the transmission rod (407), a limiting cylinder ring (409) rotatably connected to the outside of the positioning cylinder (401), and a filter screen (410) fixedly mounted on the side of the limiting cylinder ring (409); The cleaning assembly (5) comprises a plurality of fixing rods (501) fixedly mounted on the inner side wall of the outer frame (1), and an arc-shaped cover plate (502) plugged and fixed on the top of the fixing rods (501).

2. The papermaking wastewater recycling and utilization device according to claim 1, characterized in that: The bottom of the outer frame (1) is provided with a discharge port (101), the inner side wall of the discharge port (101) is provided with a sliding slot (102) passing through the side wall of the outer frame (1), and the filter screen plate (3) is transversely embedded in the interior of the sliding slot (102) and fixed to the sliding slot (102) by means of a buckle.

3. The papermaking wastewater recycling and utilization device according to claim 1, characterized in that: A feed notch is provided on the side of the outer frame (1); the positioning cylinder (401) is an L-shaped structure that is laterally embedded in the interior of the feed notch and is fixedly installed with the outer frame (1); the limiting plate (402) is a Z-shaped cylindrical structure, one side of which is embedded in the interior of the positioning cylinder (401); and a transmission tooth pattern is provided on the top surface of one end of the limiting plate (402).

4. The papermaking wastewater recycling and utilization device according to claim 1, characterized in that: The limiting ring (409) is an I-shaped ring structure. One side of the limiting ring (409) is wrapped around the outside of the limiting plate (402) and is rotatably connected to the top of the limiting plate (402). The inner wall of the limiting ring (409) is provided with a tooth groove used to cooperate with the transmission tooth pattern of the limiting plate (402).

5. The papermaking wastewater recycling and utilization device according to claim 1, characterized in that: The side walls of the inner filter cylinder (404) and the outer filter cylinder (408) are provided with a plurality of transversely arranged flow holes (411) for use in conjunction with each other, and the inner side walls of the inner filter cylinder (404) and the outer filter cylinder (408) are provided with a plurality of stirring transverse plates (412).

6. The papermaking wastewater recycling and utilization device according to claim 1, characterized in that: The side of the filter inner cylinder (404) is rotatably connected to the inner side wall of the filter outer cylinder (408). The side of the filter inner cylinder (404) is provided with a transmission gear (413) fixedly mounted thereon. The transmission rod (407) transversely penetrates the fixed sleeve (405) and is rotatably connected to the fixed sleeve (405).

7. The papermaking wastewater recycling and utilization device according to claim 1, characterized in that: The filter screen (410) is a cylindrical structure, and one end of the fixing sleeve (405) is embedded in the side wall of the filter screen (410) and is rotatably connected to the filter screen (410).

8. The papermaking wastewater recycling and utilization device according to claim 6, characterized in that: The transmission rod (407) passes through the filter outer cylinder (408) transversely and is provided with a driving gear (414) on the outside of one end located inside the filter outer cylinder (408). The driving gear (414) and the transmission gear (413) are connected through tooth meshing transmission.

9. The papermaking wastewater recycling and utilization device according to claim 1, characterized in that: The surface of the filter screen (410) is provided with a plurality of regularly arranged drainage holes (415); the arc-shaped cover plate (502) is a hollow structure and a water supply pipe is connected to one side of the bottom; and the bottom of the arc-shaped cover plate (502) is provided with a plurality of cleaning nozzles used in conjunction with the drainage holes (415).

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